A new hypothesis for the evolution of the T. rex’s short arms was formulated by Kevin Padian, UC Berkeley professor emeritus of integrative biology and curator of paleontology at the UC Museum of ...

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April 5 (UPI) --The Tyrannosaurus rex's arms may have evolved to become extremely short to lower the risk of bites while feeding in packs, a new study says. A 45-foot-long T. rex may have 3-feet long ...

For decades the Tyrannosaurs rex has been the mascot of all dinosaurs, and for good reason. They’re the most famous of the late Cretaceous therapod dinosaurs, apex predators of their time. Their ...

A new analysis of fossils believed to be juveniles of T. rex now shows they were adults of a small tyrannosaur, with narrower jaws, longer legs, and bigger arms than T. rex. The species, Nanotyrannus ...

Although we know quite a bit about the lifestyle of dinosaur; where they lived, what they ate, how they walked, not much was known about their sense of smell, until now. Scientists at the University ...